Differences between interior design and decoration
Although the two concepts are closely related, interior design and decoration are not exactly the same. Knowing and understanding the differences will help you make better decisions if you are thinking of renovating an office, a shop, or any other interior space.
What is interior design?
Interior design is a professional discipline that combines architecture, design, and functionality to transform spaces from the inside.
Interior design specialists not only consider colours or furniture, but also how the space is laid out, how to integrate the furniture, lighting, and materials, while seeking maximum ergonomics and the best way for each element to enhance the experience of those who use the space.
In other words, interior design is a comprehensive approach to interiors that strives for a balance between aesthetics, comfort, and practicality.
Main functions of interior design
- Analyse the needs of the client, the users who will use the space, and its characteristics.
- Plan the interior architectural layout.
- Select materials, colours, finishes and lighting systems.
- Coordinate with architects, builders and vendors.
- Optimise the space with ergonomics, energy efficiency, and sustainability in mind.
What is decoration?
Decoration, specifically interior decoration, focuses more on the aesthetic and visual aspects of an existing space. A decorator does not alter structures or layouts, nor work with architecture, but instead works with what already exists in order to enhance it.
Main functions of decoration
- Choose/change colour palettes.
- Select furniture, textiles and accessories.
- Design environments according to a style that suits the client or their needs (Nordic, minimalist, classic, industrial, etc.).
- Create visual harmony through decorative objects (paintings, plants, vases, etc.)
Distinguishing interior design from decoration
Interior design | Decoration |
Works on the structure and layout. | Works on aesthetics and visible objects. |
Requires technical training and architectural knowledge. | Focuses on aesthetic taste and the combination of elements. |
Solves functional and liveability problems. | Adds style, personality and beauty. |
Can alter partitions, installations and materials. | Works with what is already built. |

Moinsa, an interior design company
Interior design and decoration are complementary but not identical disciplines. While the first transforms the structure and functionality of a space, the second enhances its aesthetic appeal. Knowing how they differ will allow you to make better choices when creating a workspace that adapts to you.